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The entry must be a single entry in the journal export format, including the
terminating double newline. The MESSAGE field is now generated on the sender
side.
The advantage is that the reporter can easily pass additional metadata.
Continuing with the example of the python excepthook:
COREDUMP_PYTHON_EXECUTABLE=/usr/bin/python3
COREDUMP_PYTHON_VERSION=3.5.2 (default, Sep 14 2016, 11:28:32)
[GCC 6.2.1 20160901 (Red Hat 6.2.1-1)]
COREDUMP_PYTHON_THREAD_INFO=sys.thread_info(name='pthread', lock='semaphore', version='NPTL 2.24')
COREDUMP_PYTHON_EXCEPTION_TYPE=ZeroDivisionError
COREDUMP_PYTHON_EXCEPTION_VALUE=division by zero
MESSAGE=Process 29514 (systemd_coredump_exception_handler.py) of user zbyszek failed with ZeroDivisionError: division by zero
Traceback (most recent call last):
File "systemd_coredump_exception_handler.py", line 134, in <module>
g()
File "systemd_coredump_exception_handler.py", line 133, in g
f()
File "systemd_coredump_exception_handler.py", line 131, in f
div0 = 1 / 0
ZeroDivisionError: division by zero
Local variables in innermost frame:
a=3
h=<function f at 0x7efdc14b6ea0>
One consideration is whether to use the Journal Export Format, or send packets
over a UNIX socket instead. The advantage of current solution is that although
parsing is more complicated on the receiver side, it is much easier to use on the
sender side. I hope this can be used by various languages for which writing
binary structures to a UNIX socket is harder and more likely to be done wrong
than piping of a simple textyish format.
Only one test case is added, but it is enough to check basic sanity of the
code (single-line and binary fields and trusted fields, allocation and freeing).
In preparation for subsequenct changes...
Various stack allocations are changed to use the heap. This might be minimally
slower, but probably doesn't matter. The upside is that we will now properly
free all memory that is allocated.
In commit 050e65a we swapped order of detect_vm_{cpuid,dmi}(). That
fixed Virtualbox but broke qemu with kvm, which is expected to return
'kvm'. So check for qemu/kvm first, then DMI, CPUID last.
This fixes#5318.
Signed-off-by: Christian Hesse <mail@eworm.de>
Let's make sure we verify that all BindsTo= are in order before we actually go
and dispatch a start operation to a unit. Normally the job queue should already
have made sure all deps are in order, but this might not have been sufficient
in two cases: a) when the user changes deps during runtime and reloads the
daemon, and b) when the user placed BindsTo= dependencies without matching
After= dependencies, so that we don't actually wait for the bound to unit to be
up before upping also the binding unit.
See: #4725
The array doesn't grow dynamically, hence pick the right size at the
moment of allocation. Let's simply multiply the number of addresses of
this link by 2, as that's how many RRs we maintain for it.
Commit ae3251851 changed the fprintf() format argument into a variable
which triggers a gcc 6.3 warning/error:
src/fstab-generator/fstab-generator.c:243:17: error: format not a string literal,
argument types not checked [-Werror=format-nonliteral]
fprintf(f, format, res);
This is a false positive, as the function is only being called with
constant (not user-definable) arguments which are valid format strings.
Add a new "install-tests" make target that installs our unit test-*
executables and their test data files into /usr/lib/systemd/tests/.
This is useful for packaging the tests to run them with root privileges
or in CI.
Fixes#5257
It is useful to package test-* binaries and run them as root under
autopkgtest or manually on particular machines. They currently have a
built-in hardcoded absolute path to their test data, which does not work
when running the test programs from any other path than the original
build directory.
By default, make the tests look for their data in
<test_exe_directory>/testdata/ so that they can be called from any
directory (provided that the corresponding test data is installed
correctly). As we don't have a fixed static path in the build tree (as
build and source tree are independent), set $TEST_DIR with "make check"
to point to <srcdir>/test/, as we previously did with an automake
variable.
Moe test-resolve's test data from src/resolve/test-data to
test/test-resolve/ to be consistent with test/test-{execute,path}/. This
will make it easier to make the tests relocatable.
Currently fstab entries with 'nofail' option are mounted
asynchronously and there is no way how to specify dependencies
between such fstab entry and another units. It means that
users are forced to write additional dependency units manually.
The patch introduces new systemd fstab options:
x-systemd.before=<PATH>
x-systemd.after=<PATH>
- to specify another mount dependency (PATH is translated to unit name)
x-systemd.before=<UNIT>
x-systemd.after=<UNIT>
- to specify arbitrary UNIT dependency
For example mount where A should be mounted before local-fs.target unit:
/dev/sdb1 /mnt/test/A none nofail,x-systemd.before=local-fs.target
We don't actually make use of the return value for now, but it matches
our coding style elsewhere, and it actually shortens our code quite a
bit.
Also, add a missing OOM check after dns_answer_new().
This reverts a part of 53fda2bb93:
On classic DNS and LLMNR ANY requests may be replied to with any kind of
RR, and the reply does not have to be comprehensive: these protocols
simply define that if there's an RRset that can answer the question,
then at least one should be sent as reply, but not necessarily all. This
means it's not safe to "merge" transactions for arbitrary RR types into
ANY requests, as the reply might not answer the specific question.
As the merging is primarily an optimization, let's undo this for now.
This logic may be readded later, in a way that only applies to mDNS.
Also, there's an OOM problem with this chunk: dns_resource_key_new()
might fail due to OOM and this is not handled. (This is easily removed
though, by using DNS_RESOURCE_KEY_CONST()).
src/core/dbus.c: In function 'find_unit':
src/core/dbus.c:334:15: warning: 'u' may be used uninitialized in this function [-Wmaybe-uninitialized]
*unit = u;
^
src/core/dbus.c:301:15: note: 'u' was declared here
Unit *u;
^
At -O3, this was printed a hundred times for various callers of
manager_add_job_by_name(). AFAICT, there is no error and `unit` is always
intialized. Nevertheless, add explicit initialization to silence the noise.
src/core/manager.c: In function 'manager_start_target':
src/core/manager.c:1413:16: warning: 'unit' may be used uninitialized in this function [-Wmaybe-uninitialized]
return manager_add_job(m, type, unit, mode, e, ret);
^
src/core/manager.c:1401:15: note: 'unit' was declared here
Unit *unit;
^
We were inconsistent, manager_load_unit_prepare() would crash if _ret was ever NULL.
But none of the callers use NULL. So simplify things and require it to be non-NULL.
The home and power buttons on the Cube iwork8 air tablet are swapped,
add a hwdb entry fixing this up.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Sometimes a system may have 2 input event nodes with the same name where
we only want to apply keyboard hwdb rules to 1 of the 2 devices.
This problem happens e.g. on devices where the soc_button_array driver is
used (e.g. intel atom based tablets) which registers 2 event nodes with
the name "gpio-keys".
This commit adds a new extended match rule which extends the match to also
check $attr{phys} and $attr{capabilities/ev}, allowing to differentiate
between devices with an identical name.
Suggested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
ReadOnlyPaths=, ProtectHome=, InaccessiblePaths= and ProtectSystem= are
about restricting access and little more, hence they should be disabled
if PermissionsStartOnly= is used or ExecStart= lines are prefixed with a
"+". Do that.
(Note that we will still create namespaces and stuff, since that's about
a lot more than just permissions. We'll simply disable the effect of
the four options mentioned above, but nothing else mount related.)
This also adds a test for this, to ensure this works as intended.
No documentation updates, as the documentation are already vague enough
to support the new behaviour ("If true, the permission-related execution
options…"). We could clarify this further, but I think we might want to
extend the switches' behaviour a bit more in future, hence leave it at
this for now.
Fixes: #5308
Fixes:
```
src/shared/bus-unit-util.c: In function ‘bus_append_unit_property_assignment’:
src/shared/bus-unit-util.c:570:65: warning: passing argument 2 of ‘namespace_flag_from_string_many’ from incompatible pointer type [-Wincompatible-pointer-types]
r = namespace_flag_from_string_many(eq, &flags);
^
In file included from src/shared/bus-unit-util.c:31:0:
src/shared/nsflags.h:41:5: note: expected ‘long unsigned int *’ but argument is of type ‘uint64_t * {aka long long unsigned int *}’
int namespace_flag_from_string_many(const char *name, unsigned long *ret);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```
Closes#5312
